ATE330372T1 - LOW COMPLEXITY DATA DETECTION USING FOURIER TRANSFORMATION OF A CHANNEL CORRELATION MATRIX - Google Patents

LOW COMPLEXITY DATA DETECTION USING FOURIER TRANSFORMATION OF A CHANNEL CORRELATION MATRIX

Info

Publication number
ATE330372T1
ATE330372T1 AT02709196T AT02709196T ATE330372T1 AT E330372 T1 ATE330372 T1 AT E330372T1 AT 02709196 T AT02709196 T AT 02709196T AT 02709196 T AT02709196 T AT 02709196T AT E330372 T1 ATE330372 T1 AT E330372T1
Authority
AT
Austria
Prior art keywords
matrix
data
correlation matrix
channel response
channel correlation
Prior art date
Application number
AT02709196T
Other languages
German (de)
Inventor
Jung-Lin Pan
Parthapratim De
Ariela Zeira
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of ATE330372T1 publication Critical patent/ATE330372T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Complex Calculations (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transceivers (AREA)

Abstract

A method of recovering data for use in a receiver that simultaneously receives a plurality of code division multiple access data signals, each data signal experiencing a similar channel response. A combined signal over the shared spectrum in a time slot is received and sampled. The combined signal comprises the plurality of data signals. The sampled signal is used to estimate the similar channel response, and a channel response matrix is constructed. A channel correlation matrix is constructed based in part on the estimated channel response matrix. A fast Fourier transform (FFT) decomposition of a circulant matrix approximation of the channel correlation matrix, and the sampled data signals, are used to determine a spread data vector. The spread data vector is despread to recover data from the matrix.
AT02709196T 2001-02-06 2002-01-28 LOW COMPLEXITY DATA DETECTION USING FOURIER TRANSFORMATION OF A CHANNEL CORRELATION MATRIX ATE330372T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26693201P 2001-02-06 2001-02-06
US26858701P 2001-02-15 2001-02-15
US09/814,346 US6885654B2 (en) 2001-02-06 2001-03-22 Low complexity data detection using fast fourier transform of channel correlation matrix

Publications (1)

Publication Number Publication Date
ATE330372T1 true ATE330372T1 (en) 2006-07-15

Family

ID=27401920

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02709196T ATE330372T1 (en) 2001-02-06 2002-01-28 LOW COMPLEXITY DATA DETECTION USING FOURIER TRANSFORMATION OF A CHANNEL CORRELATION MATRIX

Country Status (15)

Country Link
US (5) US6885654B2 (en)
EP (1) EP1358718B1 (en)
JP (2) JP3897302B2 (en)
KR (2) KR100605332B1 (en)
CN (1) CN1295886C (en)
AT (1) ATE330372T1 (en)
AU (1) AU2002243695A1 (en)
CA (1) CA2437660A1 (en)
DE (1) DE60212334T2 (en)
ES (1) ES2263771T3 (en)
MX (1) MXPA03007025A (en)
MY (1) MY129888A (en)
NO (1) NO20033476L (en)
TW (5) TWI349449B (en)
WO (1) WO2002063779A2 (en)

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US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
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FI20065276A0 (en) * 2006-04-28 2006-04-28 Nokia Corp Signal processing method, receiver and equalization method in a receiver
CN101170316B (en) * 2006-10-24 2011-01-05 华为技术有限公司 Method and device for feedback and reception of downlink channel information
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Also Published As

Publication number Publication date
CN1502175A (en) 2004-06-02
AU2002243695A1 (en) 2002-08-19
CA2437660A1 (en) 2002-08-15
US20060182070A1 (en) 2006-08-17
TWI349449B (en) 2011-09-21
TWI267263B (en) 2006-11-21
US6879578B2 (en) 2005-04-12
NO20033476D0 (en) 2003-08-05
US7054300B2 (en) 2006-05-30
EP1358718B1 (en) 2006-06-14
US20020159415A1 (en) 2002-10-31
JP3948570B2 (en) 2007-07-25
KR100605332B1 (en) 2006-07-28
KR20030097840A (en) 2003-12-31
MXPA03007025A (en) 2003-11-18
US20050180495A1 (en) 2005-08-18
WO2002063779A3 (en) 2002-11-28
JP2004523957A (en) 2004-08-05
DE60212334T2 (en) 2007-05-31
US7715305B2 (en) 2010-05-11
TWI231657B (en) 2005-04-21
HK1064526A1 (en) 2005-01-28
TW200400713A (en) 2004-01-01
EP1358718A2 (en) 2003-11-05
CN1295886C (en) 2007-01-17
US20030035392A1 (en) 2003-02-20
TW200810387A (en) 2008-02-16
KR100759297B1 (en) 2007-09-18
DE60212334D1 (en) 2006-07-27
US6885654B2 (en) 2005-04-26
US20030043767A1 (en) 2003-03-06
TW200729760A (en) 2007-08-01
US6904036B2 (en) 2005-06-07
MY129888A (en) 2007-05-31
TWI271050B (en) 2007-01-11
WO2002063779A2 (en) 2002-08-15
NO20033476L (en) 2003-09-18
KR20030076658A (en) 2003-09-26
JP2007053807A (en) 2007-03-01
TW200420007A (en) 2004-10-01
JP3897302B2 (en) 2007-03-22
ES2263771T3 (en) 2006-12-16

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